Arthur Khashaev developed a new per-user systemd configuration capability for the nix-community/home-manager repository, focusing on enhancing user-level package management within NixOS environments. He introduced the systemd.user.packages option, allowing users to specify packages for systemd user units, which streamlines and aligns configuration with NixOS conventions. Arthur’s approach emphasized commit-driven development and careful filesystem handling, ensuring that parent directories are only created when necessary to reduce manual intervention. Working primarily with Nix and leveraging skills in system configuration and Home Manager, his contribution addressed reliability and usability, providing a targeted solution that deepened Home Manager’s integration with systemd.